MEMA Alert...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND NORTH FACING SHORES OF MAUI... .A long-period northwest (305-325 degrees) swell will rapidly build down the island chain today, peak this evening through early Monday, then gradually ease Tuesday through midweek. Surf heights will near warning levels through its peak, and could reach these levels if the swell ends up coming in larger than predicted. An advisory may be needed for exposed west facing shores of the Big Island tonight through Monday.

Niihau-Kauai Southwest-Waianae Coast-Oahu North Shore-
Maui Windward West-Kauai North-Molokai Windward-Molokai North-
Molokai West-Maui Central Valley North-Windward Haleakala-
321 AM HST Sun Mar 23 2025

...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST MONDAY...

* WHAT...Surf of 18 to 24 feet along north facing shores and 14 to
18 feet along west facing shores.

* WHERE...North and west facing shores of Niihau, Kauai, Oahu,
Molokai, and north facing shores of Maui.

* WHEN...Through 6 PM HST Monday. Surf will rapidly build through
the day, peak this evening through early Monday, then lower below
warning levels Monday night into Tuesday.

* IMPACTS...High. Expect very strong breaking waves and powerful
currents.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heed all advice from ocean safety officials. When in doubt, don't go
out. Stay away from the shoreline along the affected coasts.

High Surf Advisory 111399883